Measuring and testing – Volume or rate of flow – Using differential pressure
Patent
1980-02-29
1982-03-02
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Using differential pressure
137 68R, G01F 122
Patent
active
043173756
ABSTRACT:
A flowmeter for monitoring and controlling the flow of gaseous fluid at a predetermined pressure characterized by a body having a sealingly received flowtube in the center surrounded by a cover having a vent passageway and, intermediate the two, a burst capsule sealingly connected with the flowtube and the vent passage of the cover so as to allow flow therebetween until its burst strength is exceeded and thereafter rupturing to vent the gaseous fluid and prevent an explosion. Preferably, the flowmeter has a valve in an outlet passageway for controlling the flow; and the flowtube and cover are transparent with a flow bob and variable passageway for monitoring flow in the manner of a rotameter; the rotameter bob and the indicia being visible to an operator controlling the flow. In the preferred embodiment, the flowmeter is formed of material that is not adversely affected by the gas; the burst capsule is emplaced sealingly intermediate the cover and the top of the flowtube and above the normal flow passages of the flowtube. The burst capsule is preferably formed of inert plastic material that will not contaminate the gas and that will burst without violence or trauma.
REFERENCES:
patent: 2258023 (1941-10-01), McKernon
patent: 2655041 (1953-10-01), Jacobsson
patent: 3066530 (1962-12-01), Stenberg
patent: 3545252 (1970-12-01), Springfield et al.
patent: 4050305 (1977-09-01), Evans et al.
patent: 4146047 (1979-03-01), Wood et al.
patent: 4245513 (1981-01-01), Clements et al.
Fails James C.
Goldstein Herbert
Victor Equipment Co.
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